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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Fits 1968-72 GM A-Body Convertible LS Swap Transmission Crossmember 71222021HKRHooker BlackHeart has quickly become the leader in LS engine swaps and we are excited to offer this crossmember for 1968 1972 GM A Body Convertible and El Camino vehicles with LS engines. The crossmember is specifically designed to fit the narrower, boxed frame rails of the A body Convertible and El Camino models. It is compatible with our current 1968 1972 A body LS swap engine mounting brackets (71221006HKR and 71221007HKR) to provide optimized
Hooker BlackHeart has quickly become the leader in LS engine swaps and we are excited to offer this crossmember for 1968-1972 GM A-Body Convertible and El Camino vehicles with LS engines. The crossmember is specifically designed to fit the narrower, boxed frame rails of the A-body Convertible and El Camino models. It is compatible with our current 1968-1972 A-body LS swap engine mounting brackets (71221006HKR and 71221007HKR) to provide optimized engine fitment and U-joint operating angles.
Features:
- Specific geometry designed to fit the narrower, boxed frame rails of the A-body Convertible and El Camino models
- High strength-low alloy steel construction provides for a strong transmission mounting solution
- CAD designed to provide optimized installation, fitment, component clearances and exhaust system ground clearance
- Provides for direct installation of 4th-gen F-body T56, aftermarket T56 Magnum or 4L80/4L85 transmissions
- Provides for installation of 4L60/4L70, TH400 or 2004R transmissions through the use of available adapter kits
- Shares the same exhaust arch location as the stock 1968-1972 Chevelle crossmember for easy retrofitting
- Black semi-gloss powder coating provides a durable and attractive finish
- Compatible with 1968-1972 A-body LS swap engine mounting brackets P/N?s 71221006HKR and 71221007HKR to provide optimized engine fitment and U-joint operating angles
Specs:
| Application | 1968-1972 GM A-Body |
|---|---|
| Bracket Material | Steel |
| Brand | Hooker BlackHeart |
| Color | Black |
| Emission Code | 6 |
| Engine | GM Gen III/IV/IV (LS/LT) |
| Finish | Black Powdercoated |
| Material | Steel |
| Motor Type | GM LS |
| Product Type | Transmission Crossmember |
| Transmission | 200R4 |
| Transmission | 4L60E |
| Transmission | 4L65E |
| Transmission | 4L70E |
| Transmission | 4L80E |
| Transmission | 4L85E |
| Transmission | T56 GM |
| Transmission | T56 Magnum GM |
| Transmission | TH400 |
| Transmission Type | T56/T56 Magnum and 4L80/4L85 |
| Type of Component | Crossmember |
Application:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1970-1972 | Buick | Skylark | 350 |
| 1968-1972 | Buick | Skylark | Base |
| 1968-1972 | Buick | Skylark | Custom |
| 1968-1972 | Chevrolet | Chevelle | Base |
| 1968-1972 | Chevrolet | Chevelle | Concours |
| 1969-1972 | Chevrolet | Chevelle | Concours Estate |
| 1969-1972 | Chevrolet | Chevelle | Greenbrier |
| 1968-1972 | Chevrolet | Chevelle | Malibu |
| 1968-1972 | Chevrolet | Chevelle | Nomad |
| 1968-1972 | Chevrolet | Chevelle | SS |
| 1968-1972 | Chevrolet | El Camino | Base |
| 1968-1972 | Chevrolet | El Camino | Custom |
| 1968-1972 | Chevrolet | El Camino | SS |
| 1971-1972 | GMC | Sprint | Base |
| 1972 | GMC | Sprint | Custom |
| 1968-1972 | Oldsmobile | Cutlass | Base |
| 1972 | Oldsmobile | Cutlass | Cruiser |
| 1968-1972 | Oldsmobile | Cutlass | S |
| 1968-1972 | Pontiac | GTO | Base |
| 1968-1971 | Oldsmobile | 442 | Base |
| 1970-1971 | Pontiac | GTO | The Judge |
| 1968-1969 | Chevrolet | Chevelle | 300 Deluxe |
| 1968 | Chevrolet | Chevelle | 300 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 5
Great stuff.
Size: Powder Poli Ox - Pack of 6, Size: Powder Poli Ox - Pack of 6
My RV had moderate oxidation. I tried several polishes and waxes. Nothing worked well to make it shine out lasted long. I applied poly glow a week ago. It is easy to apply and made my RV shine like new. So far I love Poly glow and if it lasts anywhere a long as they say, I will continue to use it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
★★★★★ 5
It Works!!!!!
Size: Powder Poli Ox - Pack of 6
We have only completed the first two steps it Poly Glo set we purchased and has it ever made a difference in the look of our hauler/trailer! The dull oxidize black color is somewhat shiny. Cant wait to put the final two steps on it! A little elbow grease and work did wonders! We will share a photo once the procedure is complete!
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Reviewed in the United States on May 19, 2026
★★★★★ 4
Could be good
Size: Powder Poli Ox - Pack of 6
I cleaned my RV very thorough from top to bottom before even starting the process with the Poli Glow system. Here's what I learned despite videos and lots of reading reviews.
1. Must be very clean and clear of anything you dont want to stick and show on your final outcome.
2. It takes more coats than you think it would (after 3 coats) it was still really streaky and I was starting to regret using Poli Glow. I ended around 7-8 coats and my rig had no major oxidation at all.
3. As one reviewer said, use a clean microfiber cloth v the applicator that comes with it, I found much better results with no lines.
4. Dont go to heavy on the coating, the instructions say this, but I went super light and it can be very easy to get lines with heavier application.
5. Dont look at your work after 3 coats, you will feel deflated, just keep going for at least 6 coats and then look at your work.
6. Only do small areas and look out for drips and lines, you need to get them out right away.
7. I did not use the Poli Ox, I was able to get any oxidation out with just the Poli Prep
8. Going up and down a ladder for hours sucks!
9. I hope it will come off in the next couple of years when I plan to replace the decals. Honestly, thats my biggest fear is how hard it will be to remove when the time comes.
10. After a scary start, I will say it did turn out pretty nice, was it easy, nope, would I do it again? Not sure, I need some time for my back to heal up!
If you do choose Poli Glow know there are other options that maybe a better way to go such as wet sanding etc. Poli Glow is pretty good, but it can be pretty bad also if the surface is not cleaned and the Poli Glow applied correctly.
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Reviewed in the United States on August 17, 2023
★★★★★ 5
Poli glow works!
Size: Powder Poli Ox - Pack of 6, Size: Powder Poli Ox - Pack of 6
Works amazing! After many attempts to buff I purchased Poli glow and done in less than half the time and beautiful result.
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Reviewed in the United States on April 19, 2026
★★★★★ 5
Wonderful product
Size: Powder Poli Ox - Pack of 6
This product has exceeded our expectations.
Thank you
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Reviewed in the United States on May 20, 2026